Plate bending machine with compensation mechanism
By working together with the adaptive pressure fixing component, the adjustable extension component, and the adjustable support component, the shortcomings of sheet metal bending machines in terms of support range, support point positioning, and pressure monitoring are solved, achieving higher processing accuracy and safety.
Patent Information
- Application Number
- CN202511899907.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-02-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing sheet metal bending machines with compensation mechanisms have shortcomings in adjusting the support range, positioning the support points, and monitoring pressure, leading to issues with processing accuracy and safety.
It employs an adaptive pressure fixing component, an adjustable extension component, and an adjustable support component. Through the coordinated work of components such as motors, cylinders, hydraulic rods, and sensors, it achieves automatic adjustment and real-time monitoring of the plate length, support points, and pressure.
This improves the processing stability, adaptability, and safety of sheet metal bending machines, ensuring the straightness and surface integrity of the sheets.
Smart Images
Figure CN121491177A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of bending equipment, and particularly relates to a plate bending machine with a compensation mechanism. BACKGROUND
[0002] The core function of the bending machine is to exert a certain pressure on the metal plate through a pre-set mold and mechanical structure, so that the plate is plastically deformed according to the set angle and shape. In the field of plate processing, the bending machine, as the core equipment for realizing the bending forming of the plate, is widely used in the industries of sheet metal, household appliances and automobile manufacturing. The existing plate bending machine with a compensation mechanism is prone to multiple precision problems due to its own structural characteristics and processing conditions.
[0003] Firstly, the support range cannot be flexibly adjusted according to plates of different lengths, and the outer end is prone to sagging and bending due to self-weight during the processing of long-specification plates, which directly leads to the deviation of the straightness of the bending line and seriously affects the processing stability. Secondly, the support position cannot be adjusted according to the specific size and weight distribution of the plate, and the plate is prone to partial suspension, which further causes deformation, and the positioning of the support point relies on manual adjustment, which has a large error and poor adaptability to plates of different specifications. Thirdly, the pressure of the pressing assembly on the plate cannot be monitored in real time, and when facing plates of different thicknesses and materials, the plate is either displaced during the bending process due to too small pressure, or the surface of the plate is pressed and deformed due to too large pressure, which reduces the processing safety. SUMMARY
[0004] The present application aims to solve the problems existing in the prior art and provides a plate bending machine with a compensation mechanism.
[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a plate bending machine with a compensation mechanism, comprising a bottom plate and a processing table, the top of the processing table is connected with a self-adaptive pressure fixing assembly for improving processing safety, a through slot is formed in the inside of the processing table, an adjustable extension assembly for improving processing stability is connected in the inside of the through slot, and an adjustable support assembly for improving processing adaptability is connected in the inside of the adjustable extension assembly. The adjustable extension assembly comprises an extension plate and a fixed shell, one end of the extension plate slides in the inside of the through slot, the fixed shell is fixedly connected at the bottom of the processing table, a motor is fixedly installed on the outside of one end of the fixed shell through bolts, an electromagnetic brake is connected on the outside of the output shaft of the motor, a lead screw is fixedly connected to the output shaft of the motor and penetrates through the fixed shell, and one end of the lead screw rotates in the inside of the fixed shell.
[0006] Further description of the above technical scheme: The adjustable extension assembly further includes a driving block, a threaded hole is formed in the inner end of the driving block, the driving block is screwed on the outer part of the lead screw, guide holes are formed in the inner ends of the two ends of the driving block, guide rods are slidably connected in the guide holes, the two ends of the guide rods are fixedly connected to the inner side of the fixed shell, a driven block is fixedly connected to the top of the driving block, a sliding groove is formed in the bottom of the processing table, and one end of the driven block penetrates through the sliding groove and is fixedly connected to the bottom of one end of the extension plate.
[0007] As a further description of the above technical solution: The adjustable support assembly includes an electric telescopic rod, an installation groove is formed in the inner part of the extension plate, one end of the electric telescopic rod is fixedly installed in one end of the installation groove through bolts, the other end of the electric telescopic rod is fixedly connected with a sliding block, the sliding block slides in the installation groove, a support plate is fixedly connected to the top of the sliding block, a recess one is formed in the inner part of the support plate, and a displacement sensor is connected in the recess one.
[0008] As a further description of the above technical solution: The adaptive pressure fixing assembly includes a support frame, the support frame is provided in two groups, the bottom of the two groups of support frames is fixedly connected to the top of the processing table, the top of the two groups of support frames is fixedly installed with a gas cylinder through bolts, a through hole is formed in the top of the support frame, and the output end of the gas cylinder penetrates through the through hole and slides in the through hole.
[0009] As a further description of the above technical solution: The adaptive pressure fixing assembly further includes a pressing plate, the top of the pressing plate is fixedly connected with the output end of the gas cylinder, a limiting groove is formed in the inner part of the pressing plate, a separation pad is fixedly connected in the limiting groove, the separation pad is made of silica gel, a recess two is formed in the inner part of the separation pad, and a pressure sensor is connected in the recess two.
[0010] As a further description of the above technical solution: The top of the bottom plate is fixedly connected with a fixed frame, the fixed frame is located at the other end of the processing table away from the support plate, two groups of hydraulic rods are fixedly installed in the inner top of the fixed frame through bolts, and the bottom of the two groups of hydraulic rods is fixedly connected with a pressing block.
[0011] As a further description of the above technical solution: One group of the support frames is fixedly connected with a control box, a controller is fixedly installed in the control box through bolts, and a maintenance door is hingedly connected to the front end of the control box.
[0012] As a further description of the above technical solution: The controller, the hydraulic rod, the pressure sensor, the gas cylinder, the displacement sensor, the electric telescopic rod, the motor and the electromagnetic brake are electrically connected.
[0013] As a further description of the above technical solutions: The other end of the extension plate away from the processing table is fixedly connected with a driven frame, two groups of pulleys are connected at the bottom of the driven frame, and a plurality of supporting legs are fixedly connected at the bottom of the driven frame.
[0014] The present application has the following beneficial effects: 1、In the present application, the adjustable extension assembly can flexibly adjust the extension size according to the different lengths of the plate, effectively avoiding the sagging and bending of the plate due to its own weight, ensuring the straightness of the bending line, and improving the processing stability of the plate bending machine with compensation mechanism.
[0015] 2、In the present application, the adjustable support assembly can further adjust the support point to match the sagging position of the plate, avoid the deformation of the plate caused by local suspension, and ensure the accurate positioning of the support point, reduce the manual adjustment error, and improve the processing adaptability of the plate bending machine with compensation mechanism.
[0016] 3、In the present application, the self-adaptive pressure fixing assembly can monitor the pressure on the plate in real time, avoid displacement when the plate is bent due to too small pressure, or cause the surface of the plate to be pressed and deformed due to too large pressure, and adapt to the pressing needs of plates of different thicknesses, thereby improving the processing safety of the plate bending machine with compensation mechanism. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 The overall structure of a plate bending machine with compensation mechanism is shown in the present application Figure One ; Figure 2 The overall structure of a plate bending machine with compensation mechanism is shown in the present application Figure Two ; Figure 3 The cross-sectional view of a plate bending machine with compensation mechanism is shown in the present application Figure 4 The local structure of a plate bending machine with compensation mechanism is shown in the present application Figure One ; Figure 5 The local structure of a plate bending machine with compensation mechanism is shown in the present application Figure Two ; Figure 6 The local structure of a plate bending machine with compensation mechanism is shown in the present application Figure Three .
[0018] LEGEND: 1, bottom plate; 2, processing table; 3, through groove; 4, adjustable extension assembly; 5, extension plate; 6, fixed shell; 7, motor; 8, screw; 9, driving block; 10, guide hole; 11, guide rod; 12, sliding groove; 13, driven block; 14, adjustable support assembly; 15, electric telescopic rod; 16, mounting groove; 17, sliding block; 18, support plate; 19, groove one; 20, displacement sensor; 21, self-adaptive pressure fixing assembly; 22, support frame; 23, air cylinder; 24, through hole; 25, pressing plate; 26, limiting groove; 27, spacer; 28, groove two; 29, pressure sensor; 30, fixed frame; 31, hydraulic rod; 32, pressing block; 33, control box; 34, controller; 35, access door; 36, driven frame; 37, pulley; 38, support leg. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0020] REFERENCE Figures 1-6 An embodiment provided by the present application: a plate bending machine with a compensation mechanism, comprising a bottom plate 1 and a processing table 2, the top of the processing table 2 is connected with a self-adaptive pressure fixing assembly 21 for improving processing safety, a through groove 3 is formed in the inside of the processing table 2, and an adjustable extension assembly 4 for improving processing stability is connected in the inside of the through groove 3, and an adjustable support assembly 14 for improving processing adaptability is connected in the inside of the adjustable extension assembly 4. The adjustable extension assembly 4 comprises an extension plate 5 and a fixed shell 6, one end of the extension plate 5 slides in the through groove 3 to expand the length of the processing table 2, the fixed shell 6 is fixedly connected to the bottom of the processing table 2 to provide a mounting base, a motor 7 is fixedly installed on the outside of one end of the fixed shell 6 through bolts to provide power, an electromagnetic brake is connected to the outside of the output shaft of the motor 7 to lock the output shaft when the motor 7 is stopped to prevent the extension plate 5 from shifting, and the output shaft of the motor 7 is fixedly connected with a screw 8 which rotates at one end in the fixed shell 6 to ensure stability.
[0021] The adjustable extension assembly 4 further comprises a driving block 9, a threaded hole is formed in the inner part of the two ends of the driving block 9, the driving block 9 is screwed on the outer part of the lead screw 8 to transmit power, a guide hole 10 is formed in the inner part of the two ends of the driving block 9, a guide rod 11 is slidably connected in the guide hole 10, the two ends of the guide rod 11 are fixedly connected to the inner side of the fixed shell 6 to limit the movement direction of the driving block 9 and ensure smooth movement, a driven block 13 is fixedly connected to the top of the driving block 9, a sliding groove 12 is formed in the bottom of the processing table 2 to provide a channel for the movement of the driven block 13, one end of the driven block 13 penetrates through the sliding groove 12 and is fixedly connected to the bottom of one end of the extension plate 5 to transmit movement, the adjustable support assembly 14 comprises an electric telescopic rod 15 to adjust the support point, an installation groove 16 is formed in the inner part of the extension plate 5, one end of the electric telescopic rod 15 is fixedly installed in one end of the inner part of the installation groove 16 through bolts, a sliding block 17 is fixedly connected to the other end of the electric telescopic rod 15, the sliding block 17 slides in the installation groove 16 to ensure the movement path, a support plate 18 is fixedly connected to the top of the sliding block 17 to directly contact and support the plate, which avoids local suspension, a recess one 19 is formed in the inner part of the support plate 18, a displacement sensor 20 is connected in the recess one 19 to monitor the position of the support plate in real time and ensure accurate support, the self-adaptive pressure fixing assembly 21 comprises a support frame 22, two groups of support frames 22 are provided to provide installation support, the bottom of the two groups of support frames 22 is fixedly connected to the top of the processing table 2, a pneumatic cylinder 23 is fixedly installed on the top of the two groups of support frames 22 through bolts to realize plate pressing and loosening, a through hole 24 is formed in the top of the support frame 22 to provide a movable channel, the output end of the pneumatic cylinder 23 penetrates through the through hole 24 and slides in the through hole 24, the self-adaptive pressure fixing assembly 21 further comprises a pressing plate 25, the top of the pressing plate 25 is fixedly connected with the output end of the pneumatic cylinder 23 to apply pressing force, a limiting groove 26 is formed in the inner part of the pressing plate 25, a spacer 27 is fixedly connected in the limiting groove 26, the spacer 27 is made of silica gel to buffer pressure and protect the surface of the plate, a recess two 28 is formed in the inner part of the spacer 27, a pressure sensor 29 is connected in the recess two 28 to monitor the pressing force in real time, a fixed frame 30 is fixedly connected to the top of the bottom plate 1 to provide bending power support, the fixed frame 30 is located at the other end of the processing table 2 away from the support plate 18, two groups of hydraulic rods 31 are fixedly installed on the inner top of the fixed frame 30 through bolts to realize plate bending, a pressing block 32 is fixedly connected to the bottom of the two groups of hydraulic rods 31 to contact with the plate and apply bending force, a control box 33 is fixedly connected to the outer side of one group of support frames 22, a controller 34 is fixedly installed in the control box 33 through bolts to control the cooperative work of various components, a maintenance door 35 is hingedly connected to the front end of the control box 33 to facilitate the maintenance of the components in the control box 33, the controller 34, the hydraulic rod 31, the pressure sensor 29, the pneumatic cylinder 23, the displacement sensor 20, the electric telescopic rod 15, the motor 7 and the electromagnetic brake are electrically connected, a driven frame 36 is fixedly connected to the other end of the extension plate 5 away from the processing table 2, two groups of pulleys 37 are connected to the bottom of the driven frame 36 to support the outer end of the extension plate 5 and reduce movement friction,The bottom of the processing table 2 is fixedly connected with a plurality of support legs 38, and the bottom of the plurality of support legs 38 is fixedly connected to the top of the bottom plate 1, supporting the processing table 2 and ensuring the stability of the overall structure.
[0022] Working principle: when the plate bending machine with compensation mechanism works, each component cooperates through the unified scheduling of the controller 34; before processing, the operator inputs the processing parameters into the controller 34 according to the size and bending angle requirements of the plate to be processed; after receiving the instructions, the controller 34 drives each component to enter the initial state, the hydraulic rod 31 drives the pressing block 32 to rise to the highest position, the cylinder 23 drives the pressing plate 25 to rise, the electromagnetic brake is unlocked, and the adjustable extension assembly 4 enters the standby adjustment mode; then the controller 34 starts the motor 7 according to the plate length parameter, the motor 7 drives the screw 8 to rotate in the fixed shell 6, the driving block 9 moves linearly along the guide rod 11, and the extension plate 5 is driven by the driven block 13 to extend or retract in the through slot 3 until the extension plate 5 extends to the length that matches the plate extension requirement; after the motor 7 stops, the electromagnetic brake locks the output shaft, and the driven frame 36 and pulley 37 at the bottom of the extension plate 5 support the weight of the outer end and reduce the moving friction; After the position of the extension plate 5 is fixed, the controller 34 adjusts the electric telescopic rod 15 according to the plate width and bending position parameters, the electric telescopic rod 15 extends or retracts in the mounting slot 16 to drive the sliding block 17 to slide, and the support plate 18 at the top of the sliding block 17 moves to the position where the plate is likely to be suspended; the displacement sensor 20 in the support plate 18 captures the position data in real time and feeds back to the controller 34, the controller 34 fine-tunes the extension amount of the electric telescopic rod 15 to ensure the positioning accuracy of the support plate 18; the operator places the plate on the top of the processing table 2 and the extension plate 5, and when the bending end approaches the fixed frame 30, the controller 34 controls the cylinder 23 to press down, the output end of the cylinder 23 slides along the through hole 24 to drive the pressing plate 25 to contact the plate, the pressure sensor 29 in the pressing plate 25 monitors the pressing force in real time and transmits the data to the controller 34, the controller 34 adjusts the output force of the cylinder 23 according to the data to make the pressing force reach the safe range that matches the plate, and the spacer 27 buffers the contact pressure to protect the surface of the plate; After the plate is supported and fixed, the controller 34 sends a bending signal to the hydraulic rod 31, the hydraulic rod 31 drives the pressing block 32 to move downward to apply pressure to the plate to be bent with the processing table 2 to make the plate plastically deform; during the bending process, each compensation mechanism operates synchronously, the displacement sensor 20 continuously monitors the position of the support plate 18, and if the plate displaces, the controller 34 fine-tunes the electric telescopic rod 15 to compensate for the support deviation; the pressure sensor 29 continuously monitors the pressing force, and if the pressing force fluctuates, the controller 34 adjusts the output force of the cylinder 23 to maintain stability; if the plate thickness is uneven, the controller 34 can fine-tune the output pressure of the hydraulic rod 31 to compensate for the bending force deviation; after the plate is bent to the preset angle, the controller 34 controls the hydraulic rod 31 to drive the pressing block 32 to rise, the cylinder 23 to drive the pressing plate 25 to rise, and the electromagnetic brake to be unlocked in turn, and the operator takes down the finished product, and the equipment enters the next cycle of processing.
[0023] The electrical components in the text are all connected with the main controller and 220V mains through electrical connection, and the main controller can be a conventional known device controlled by a computer, etc. The specific embodiments of the present disclosure omit the detailed description of known functions and known components. To ensure the compatibility of the device, the operation means used are consistent with the parameters of the market appliances.
[0024] The motor, electric telescopic rod, displacement sensor, air cylinder, pressure sensor, hydraulic rod, controller and pulley are all known in the art and will not be described here. Those skilled in the art can select the motor, electric telescopic rod, displacement sensor, air cylinder, pressure sensor, hydraulic rod, controller and pulley according to actual experience and use requirements.
[0025] In the present application, unless otherwise specified and limited, the terms "mounting", "setting", "connecting", "fixing", "threading" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise specified, those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.
[0026] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A sheet metal bending machine with a compensation mechanism, comprising a base plate (1) and a processing table (2), characterized in that: The processing table (2) is connected to an adaptive pressure fixing component (21) at the top. The processing table (2) has a through groove (3) inside. An adjustable extension component (4) is connected inside the through groove (3). An adjustable support component (14) is connected inside the adjustable extension component (4). The adjustable extension assembly (4) includes an extension plate (5) and a fixed shell (6). One end of the extension plate (5) slides inside the through groove (3). The fixed shell (6) is fixedly connected to the bottom of the processing table (2). A motor (7) is fixedly installed on the outer side of one end of the fixed shell (6) by bolts. An electromagnetic brake is externally connected to the output shaft of the motor (7). A lead screw (8) is fixedly connected to the output shaft of the motor (7) through the fixed shell (6). One end of the lead screw (8) rotates inside the fixed shell (6).
2. The sheet metal bending machine with a compensation mechanism according to claim 1, characterized in that: The adjustable extension assembly (4) also includes an active block (9), which has a threaded hole in the middle and is threaded to the outside of the lead screw (8). Both ends of the active block (9) have guide holes (10), and guide rods (11) are slidably connected inside the guide holes (10). Both ends of the guide rods (11) are fixedly connected to the inside of the fixed shell (6). A driven block (13) is fixedly connected to the top of the active block (9). A sliding groove (12) is provided at the bottom of the processing table (2). One end of the driven block (13) passes through the sliding groove (12) and is fixedly connected to the bottom of one end of the extension plate (5).
3. A sheet metal bending machine with a compensation mechanism according to claim 1, characterized in that: The adjustable support assembly (14) includes an electric telescopic rod (15). An installation groove (16) is provided inside the extension plate (5). One end of the electric telescopic rod (15) is fixedly installed inside the installation groove (16) by bolts. The other end of the electric telescopic rod (15) is fixedly connected to a slider (17). The slider (17) slides inside the installation groove (16). A support plate (18) is fixedly connected to the top of the slider (17). A groove (19) is provided inside the support plate (18). A displacement sensor (20) is connected inside the groove (19).
4. A sheet metal bending machine with a compensation mechanism according to claim 1, characterized in that: The adaptive pressure fixing component (21) includes a support frame (22), which has two sets. The bottom of both sets of the support frame (22) is fixedly connected to the top of the processing table (2). The top of both sets of the support frame (22) is fixedly installed with a cylinder (23) by bolts. The top of the support frame (22) has a through hole (24). The output end of the cylinder (23) passes through the through hole (24) and slides inside the through hole (24).
5. A sheet metal bending machine with a compensation mechanism according to claim 4, characterized in that: The adaptive pressure fixing assembly (21) also includes a pressure plate (25). The top of the pressure plate (25) is fixedly connected to the output end of the cylinder (23). A limiting groove (26) is opened inside the pressure plate (25). A septum (27) is fixedly connected inside the limiting groove (26). The septum (27) is made of silicone. A second groove (28) is opened inside the septum (27). A pressure sensor (29) is connected inside the second groove (28).
6. A sheet metal bending machine with a compensation mechanism according to claim 3, characterized in that: The top of the base plate (1) is fixedly connected to a fixing frame (30). The fixing frame (30) is located at the other end of the processing table (2) away from the support plate (18). Two sets of hydraulic rods (31) are fixedly installed at the top of the fixing frame (30) by bolts. The bottom of the two sets of hydraulic rods (31) is fixedly connected to a pressure block (32).
7. A sheet metal bending machine with a compensation mechanism according to claim 4, characterized in that: A control box (33) is fixedly connected to the outside of a set of support frames (22). A controller (34) is fixedly installed inside the control box (33) by bolts. An inspection door (35) is hinged to the front end of the control box (33).
8. A sheet metal bending machine with a compensation mechanism according to claim 7, characterized in that: The controller (34), hydraulic rod (31), pressure sensor (29), cylinder (23), displacement sensor (20), electric telescopic rod (15), motor (7) and electromagnetic brake are all electrically connected.
9. A sheet metal bending machine with a compensation mechanism according to claim 1, characterized in that: The extension plate (5) is fixedly connected to a driven frame (36) at the bottom of the other end away from the processing table (2). Two sets of pulleys (37) are connected to the bottom of the driven frame (36). Multiple sets of support legs (38) are fixedly connected to the bottom of the processing table (2). The bottom of the multiple sets of support legs (38) are all fixedly connected to the top of the base plate (1).